Hewlett-packard Development Company, L.p.

Hewlett Packard Enterprise Development LP

Quantum Corporation

John D Hampton

Mike Alan Holmberg

Turguy Goker

Carl R Hoerger

Jaewook Lee

Robert Christopher Aaron

Neil Thomas Hutchon

Robert Brummet

Scott A Swanbeck

Charles Calvin Brooks Partee

To read data from a storage medium, a magnetization map of the data stored on at least one portion of the storage medium is obtained. The magnetization map is analyzed to obtain intermediate data corresponding to the data stored on the at least one portion of storage medium. Further, the intermediate data is converted into the user data based on format emulation of a data storage format of the storage medium. The conversion of the intermediate data includes decrypting the intermediate data to obtain the user data.

Reading data on a storage medium using magnetization map

A technique includes in a data storage device, sensing a plurality of data streams from a track of storage media as the media moves in a given direction using a plurality of read elements such that at least one of the read elements is redundant. The technique includes combining the data streams to generate a data stream indicating data read from the track.

Tape storage device having at least one redundant read data element

A data writer is described comprising: a memory to store at least one amount of source data that is to be written to a data storage medium; a processor to arrange the source data into subsets and generate ECC data in respect of each subset, wherein the source data and the associated ECC data are to be written to a data storage medium via a plurality of individual data channels, and wherein the ECC data comprises at least a first degree of ECC protection having a first level of redundancy in respect of a first subset and a second degree of ECC protection having a second level of redundancy in respect of a second subset; a plurality of data writing elements, each to write data from an associated data channel, concurrently with the writing by the other data writing elements of data from respective data channels, to a data storage medium; and a controller, to control the writing by the data writing elements of the source data and the associated ECC data to the data storage medium.

Error control coding

A method may include receiving a respective tape cartridge of a plurality of tape cartridges by a respective cartridge receiving compartment of a plurality of cartridge receiving compartments and configuring a memory of a tape drive manager to include a plurality of information modules associated with the plurality of tape cartridges, respectively. Each information module may include an internal tape identifier to identify a corresponding tape cartridge and a firmware to cause the tape drive manager to write data to and read data from the corresponding tape cartridge. The method may also include upgrading the respective firmware of a respective information module associated with the respective tape cartridge by the tape drive manager using upgrade information obtained from the respective tape cartridge in the wireless manner based on an affirmative identifier determination.

Upgrade firmware with upgrade information from a tape cartridge in a wireless manner

An example provides a system and method for decreasing a data transfer rate of a linear tape drive. The method includes detecting, within a linear tape drive, a first data transfer rate of a host computing system to determine whether the first data transfer rate is slower than a second data transfer rate of a magnetic tape head within the linear tape drive. The method also includes, in response to determining that the first data transfer rate is slower than the second data transfer rate, deactivating a specified number of data write elements within the magnetic tape head, wherein deactivating the specified number of the data write elements includes decreasing the second transfer rate.

Data transfer of a linear tape drive

Certain embodiments of the present invention are directed to magnetic-tape drives that employ data-set-multiplexing magnetic-tape formats in order to achieve compatibility in magnetic-tape formats with respect to a variety of different magnetic-tape-drive tape-head configurations and dimensions. While previous and current magnetic-tape drives employ magnetic-tape formats that feature linear sequences of data sets along the tracks that are read or written during a single pass, or wrap, magnetic-tape drives of the present invention feature magnetic tape that contains data formatted according to a data-set-multiplexing magnetic-tape format, the data-set-multiplexing magnetic-tape format including, for each multiple-track wrap within a band, two or more parallel sequences of data sets written to the multiple tracks of the multiple-track wrap.

Method and system for providing tape-format compatibility between various types of tape heads

Debris collection apparatus includes a housing that substantially conforms to a dimensional standard for a specified type of data cartridge. A debris attractant operatively associated with a surface of the housing attracts and holds debris from a region to be cleaned.

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Meridian, ID, United States of America

John D Hampton